Contribution of TARDBP mutations to sporadic amyotrophic lateral sclerosis.
OBJECTIVE
Mutations in the TARDBP gene, which encodes the TAR DNA binding protein (TDP-43), have been described in individuals with familial and sporadic amyotrophic lateral sclerosis (ALS). We screened the TARDBP gene in 285 French sporadic ALS patients to assess the frequency of TARDBP mutations in ALS.


RESULTS
Six individuals had potentially deleterious mutations of which three were novel including a Y374X truncating mutation and P363A and A382P missense mutations. This suggests that TARDBP mutations may predispose to ALS in approximately 2% of the individuals followed in this study.


CONCLUSIONS
Our findings, combined with those from other collections, brings the total number of mutations in unrelated ALS patients to 17, further suggesting that mutations in the TARDBP gene have an important role in the pathogenesis of ALS.
Daoud
H
H
Centre of Excellence in Neuromics, CHUM Research Center and the Department of Medicine, University of Montreal, Montreal, Quebec, Canada.
Valdmanis
P N
PN
Kabashi
E
E
Dion
P
P
Dupré
N
N
Camu
W
W
Meininger
V
V
Rouleau
G A
GA
D000690:Amyotrophic Lateral Sclerosis / Q000235:genetics* / Q000378:metabolism; D001483:Base Sequence; D015331:Cohort Studies; D004252:DNA Mutational Analysis; D004268:DNA-Binding Proteins / Q000235:genetics* / Q000378:metabolism; D005260:Female; D005787:Gene Frequency; D006801:Humans; D008297:Male; D008875:Middle Aged; D008969:Molecular Sequence Data; D009154:Mutation
D004268:DNA-Binding Proteins